package cn.edu.swu.hh.utils;

import cn.edu.swu.hh.book.Book;

import java.util.List;

public class HtmlHelper {

    public static String wrapHtml(String content) {
        String template =
                "<html>" +
                        "<head>" +
                        "<meta charset='utf-8'>" +
                        "<title>西大网上书城</title>" +
                        "<link rel='stylesheet' href='css/bookstore.css' />" +
                        "</head>" +
                        "<body>" +
                        "<center>" +
                        "<br><h1>欢迎访问西大网上书城</h1>" +
                        "<div>" +
                        "<a href='./add_book.html'> 添加图书 </a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;" +
                        "<a href='./books'> 显示图书 </a>" +
                        "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;" +
                        "</div>" +
                        "<br>" +
                        "<form action='./searchBook' method='get'>" +
                        "<input type='text' name='content'> &nbsp;&nbsp;&nbsp; <input type='submit' value='查询'>" +
                        "</form>" +
                        "%s" +
                        "</center>" +
                        "</body>" +
                        "</html> ";
        return String.format(template, content);
    }


    /**
     * 该函数将传入的图书列表对象转换成 html 的表格
     * @param books
     * @return
     */
    public static String buildBooksTable(List<Book> books) {
        StringBuilder sb = new StringBuilder();
        sb.append("<table class='tb-book'>");
        sb.append("<tr>")
                .append("<th>编号</th><th>名字</th><th>作者</th><th>价格</th><th>备注</th><th>日期</th><th></th><th></th>")
                .append("</tr>");
        String template =
                "<tr>" +
                        "<td align='center'>%s</td>" +
                        "<td>%s</td>" +
                        "<td align='center'>%s</td>" +
                        "<td align='center'>%s</td>" +
                        "<td>%s</td>" +
                        "<td align='center'>%s</td>" +
                        "<td align='center'><a href='./deleteBook?id=%s'>删除</a></td>" +
                        "<td align='center'><a href='./updateBook?id=%s'>修改</a></td>" +
                        "</tr>";

        for (Book b : books) {
            sb.append(String.format(template,
                    b.getId(), b.getName(), b.getAuthor(), b.getPrice(), b.getMemo(), b.getPublish(),
                    b.getId(), b.getId()
            ));
        }
        sb.append("</table>");
        return sb.toString();
    }
}
